CURRENT OF DEATH 



169. 



It will be observed that as we proceed from the dead to 

 the dying, the negativity of the latter rapidly increases, the 

 maximum being at 30 mm. from the zero-point taken on the 



25 30 35 40 45 



4(10 



FIG. 113. Distribution of Electric Potential in Lamina of Colocasia along 

 a radial line from dead to living through intermediate stages. Ab- 

 scissa gives distance in mm. from chosen centre in dead tissue, ordinate 

 represents galvanometric negativity in divisions. Dead tissue repre- 

 sented dark, dying shaded, and living white. 



dead tissue. This point of maximum-negativity almost 

 coincides with the visible border-line between the yellow 

 and the green. Beyond this, however, there is an electrical 



